Efficient method for controlling the spatial coherence of a laser

M. Nixon; B. Redding; A. A. Friesem; H. Cao; N. Davidson

doi:10.1364/OL.38.003858

Efficient method for controlling the spatial coherence of a laser

M. Nixon, B. Redding, A. A. Friesem, H. Cao, N. Davidson

Department of Physics of Complex Systems

Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

Abstract

An efficient method to tune the spatial coherence of a degenerate laser over a broad range with minimum variation in the total output power is presented. It is based on varying the diameter of a spatial filter inside the laser cavity. The number of lasing modes supported by the degenerate laser can be controlled from 1 to 320,000, with less than a 50% change in the total output power. We show that a degenerate laser designed for low spatial coherence can be used as an illumination source for speckle-free microscopy that is nine orders of magnitude brighter than conventional thermal light.

Original language	English
Pages (from-to)	3858-3861
Number of pages	4
Journal	Optics Letters
Volume	38
Issue number	19
DOIs	https://doi.org/10.1364/OL.38.003858
State	Published - 1 Oct 2013

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OL.38.003858

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title = "Efficient method for controlling the spatial coherence of a laser",

abstract = "An efficient method to tune the spatial coherence of a degenerate laser over a broad range with minimum variation in the total output power is presented. It is based on varying the diameter of a spatial filter inside the laser cavity. The number of lasing modes supported by the degenerate laser can be controlled from 1 to 320,000, with less than a 50\% change in the total output power. We show that a degenerate laser designed for low spatial coherence can be used as an illumination source for speckle-free microscopy that is nine orders of magnitude brighter than conventional thermal light.",

author = "M. Nixon and B. Redding and Friesem, \{A. A.\} and H. Cao and N. Davidson",

note = "ISF-Bikura; Weizmann Institute Yale University exchange programThe work was supported in part by ISF-Bikura and the Weizmann Institute Yale University exchange program.",

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doi = "10.1364/OL.38.003858",

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AU - Nixon, M.

AU - Redding, B.

AU - Friesem, A. A.

AU - Cao, H.

AU - Davidson, N.

N1 - ISF-Bikura; Weizmann Institute Yale University exchange programThe work was supported in part by ISF-Bikura and the Weizmann Institute Yale University exchange program.

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Y1 - 2013/10/1

N2 - An efficient method to tune the spatial coherence of a degenerate laser over a broad range with minimum variation in the total output power is presented. It is based on varying the diameter of a spatial filter inside the laser cavity. The number of lasing modes supported by the degenerate laser can be controlled from 1 to 320,000, with less than a 50% change in the total output power. We show that a degenerate laser designed for low spatial coherence can be used as an illumination source for speckle-free microscopy that is nine orders of magnitude brighter than conventional thermal light.

AB - An efficient method to tune the spatial coherence of a degenerate laser over a broad range with minimum variation in the total output power is presented. It is based on varying the diameter of a spatial filter inside the laser cavity. The number of lasing modes supported by the degenerate laser can be controlled from 1 to 320,000, with less than a 50% change in the total output power. We show that a degenerate laser designed for low spatial coherence can be used as an illumination source for speckle-free microscopy that is nine orders of magnitude brighter than conventional thermal light.

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DO - 10.1364/OL.38.003858

M3 - مقالة

SN - 0146-9592

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SP - 3858

EP - 3861

JO - Optics Letters

JF - Optics Letters

IS - 19

ER -

Efficient method for controlling the spatial coherence of a laser

Abstract

All Science Journal Classification (ASJC) codes

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